**E**ff**ects of Entropy Generation, Thermal Radiation and Moving-Wall Direction on Mixed Convective Flow of Nanofluid in an Enclosure**

**Sivasankaran Sivanandam 1,\*, Ali J. Chamkha 2,3, Fouad O. M. Mallawi 1, Metib S. Alghamdi 4 and Aisha M. Alqahtani 5**


Received: 16 July 2020; Accepted: 27 August 2020; Published: 1 September 2020

**Abstract:** A numeric investigation is executed to understand the impact of moving-wall direction, thermal radiation, entropy generation and nanofluid volume fraction on combined convection and energy transfer of nanoliquids in a differential heated box. The top wall of the enclosed box is assumed to move either to the left or the right direction which affects the stream inside the box. The horizontal barriers are engaged to be adiabatic. The derived mathematical model is solved by the control volume technique. The results are presented graphically to know the impact of the dissimilar ways of moving wall, Richardson number, Bejan number, thermal radiation, cup mixing and average temperatures. It is concluded that the stream and the thermal distribution are intensely affected by the moving-wall direction. It is established that the thermal radiation enhances the convection energy transport inside the enclosure.

**Keywords:** mixed convection; thermal radiation; entropy; nanoliquid; moving wall
